Table 4 Characterization of the evaluation criteria that are used to evaluate the SPI (fuzzy sets and thresholds).
Code | Performance measures (evaluation criteira) | Performance levels | ||
|---|---|---|---|---|
Low | Medium | High | ||
EC1 | Demography | < 10,000 | 10,000–15,000 | > 15,000 |
EC2 | Water consumption/ wastewater production | < 45 lcpd | 45–65 lcpd | > 65 lcpd |
EC3 | Wastewater reuse | Minimal reuse potential (Low value agricultural land) | Medium reuse potential (Medium value agricultural land) | Great reuse potential (High value agricultural land) |
EC4 | Environmental factors | Community located in a region of low hydrological vulnerability to groundwater pollution (no springs, groundwater wells, etc.) | Community located in a region of medium hydrological vulnerability to groundwater pollution | Community located in a region of high hydrological vulnerability to groundwater pollution |
EC5 | Operational body | Village council, Committee (Ministry of Local Government and Municipal Development and Lending Fund classification) | Municipality C, D (Ministry of Local Government and Municipal Development and Lending Fund classification) | Municipality A, B (Ministry of Local Government and Municipal Development and Lending Fund classification) |
EC6 | Risks of industrial wastes | > 15 (stonecutters + olives-oil mill + textiles) | 15 − 5 | < 5 |
EC7 | The socio-economic factor | <= 30% of the total population aged 10 years and over is economically active | 30–35% of the total population aged 10 years and over is economically active | > 35% of the total population aged 10 years and over is economically active |
EC8 | The geographical factor | < 50% by gravity flow | 50 − 95% by gravity flow | > 95% by gravity flow |
EC9 | License issues | C | B | A |
